The Olympus Stylus 1 is 6.3 mm narrower, 27 mm taller, 5 mm deeper and 11 g heavier than the Pentax MX-1.
| Pentax MX-1 | Olympus Stylus 1 | |
|---|---|---|
| Size (W × H × D) | 122.5 × 60 × 51.5 mm | 116.2 × 87 × 56.5 mm |
| Weight | 391 g | 402 g |
| Lens | Fixed lens | Fixed lens |
| Sensor | 1/1.7" | 1/1.7" |
| Announced | 2013 | 2013 |